Home / 1,087,413.45-1,500,463.76-628,439.39

Finding the Fourth Proportional to 1,087,413.45, 1,500,463.76 and 628,439.39

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Solution

The fourth proportional to 1,087,413.45, 1,500,463.76 and 628,439.39 is: 867,149.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,413.45 : 1,500,463.76 = 628,439.39 : x
  2. Step 2: Convert to fraction form
    1,087,413.45/1,500,463.76 = 628,439.39/x
  3. Step 3: Cross multiply
    1,087,413.45x = 1,500,463.76 × 628,439.39
  4. Step 4: Simplify right side
    1,087,413.45x = 942,950,530,051.51
  5. Step 5: Solve for x
    x = 942,950,530,051.51/1,087,413.45
  6. Step 6: Final answer
    x = 867,149.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.